Bayer, J&J’s Xarelto Matches Warfarin in Rocket Trial

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Bayer AG’s blood thinner Xarelto matched the standard therapy at preventing blood clots in patients with an irregular heartbeat, results that may determine its success in a market worth as much as $14 billion a year.

Xarelto was as effective as warfarin, the standard treatment over the past half century, Leverkusen, Germany-based Bayer said yesterday in the first comparison between the two drugs. Xarelto had “comparable” safety and rates of bleeding versus the standard, Bayer said.